Healthy roots decide everything that happens above the soil—water uptake, nutrient capture, stress tolerance, and final yield. Many farms struggle with hidden root-limiters: locked phosphorus, poor microbial activity, high pH soils, salinity pockets, and uneven fertilizer efficiency. This is where Aspergillus Niger is often used in biofertilizer and soil biology programs—because it improves nutrient availability and creates conditions that help roots expand faster and deeper.